What plant hardiness zone is Castel Giorgio

Castel Giorgio is located at Terni, Umbria, Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Castel Giorgio is 8b by the USDA scale.

Coldest zone's winter temperature is −9.4 … −6.7 °C.

Plants of 8b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 8b USDA.

Alternative climatic zone of gardening for Castel Giorgio by UK RHS scale is H4.

Plants of H4 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H4 RHS.

Castel Giorgio @ wikipedia.

* The lowest temperature in Castel Giorgio was -8.5 °C on 28/02/2018.